发明名称 Self-opening serially-arranged plastic bag pack of the star-seal type
摘要 A pack of self-opening serially-arranged plastic bags of the "star-seal" type defining eight superimposed wall layers in the bag. Mounting tabs form a part of top portions of each of the eight layers and are positioned in superimposed positions and each includes an aperture for mounting the tabs on a tab retaining device of a rack in a non-front-side-free manner. Each of the tabs includes a mechanism for rendering the tab detachable and providing a predetermined detaching strength. In one embodiment, each of the tabs are detachable from the rack and in another embodiment, each of the tabs are detachable from the bag. A frangible bond is formed between the rear layer and the front layer of each successive bag in the pack. This frangible bond has a predetermined strength (1) which is greater than the predetermined detaching strength of two of the tabs and (2) is weaker than the predetermined detaching strength of the remaining six tabs to allow the leading bag of the pack (when pulled by a user for removal) to disengage from the pack, while (before disengagement) pulling the succeeding bag in the pack to cause detaching of the two leading of the tabs for self-opening of the succeeding bag.
申请公布号 US6446811(B1) 申请公布日期 2002.09.10
申请号 US20000749057 申请日期 2000.12.27
申请人 SONOCO DEVELOPMENT, INC. 发明人 WILFONG, JR. HARRY B.
分类号 B65D33/00;(IPC1-7):B65D33/14 主分类号 B65D33/00
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